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Ultra-Low Latency Multi-Task Offloading in Mobile Edge Computing
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DOI：10.1109/ACCESS.2021.3061105.png)
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Abstract
En 中文
With the development of computer technology, computational-intensive and delay-sensitive applications are emerging endlessly, and they are limited by the computing power and battery life of Smart Mobile Devices (SMDs). Mobile edge computing (MEC) is a computation model with great potential to meet application requirements and alleviate burdens on SMDs through computation offloading. However, device mobility and server status variability in the multi-server and multi-task scenario bring challenges to the computation offloading. To cope with these challenges, we first propose a parallel task offloading model and a small area-based edge offloading scheme in MEC. Then, we formulate the optimization problem to minimize the completion time of all tasks, and transform the problem into a deep reinforcement learning-based offloading scheme by Markov decision approach. Furthermore, we present a deep deterministic policy gradient (DDPG) approach for obtaining the offloading strategy. Experimental results demonstrate that the DDPG- based offloading approach improves long-term performance by at least 19% in ultra-low latency, efficient usage of servers, and frequent mobility of SMDs over traditional strategies.
Keywords:
Task analysis
Servers
Optimization
Computational modeling
Resource management
Edge computing
Energy consumption
Mobile edge computing
computation offloading
multi-server
multi-task
deep reinforcement learning
deep deterministic policy gradient
Journal
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3.6
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9.8W
Citations:
29.4W